BILLINGS — Astronomical spring starts with the spring equinox at 9:49 PM Thursday evening.
Light snowfall continues Thursday, with one to 3 inches possible in the mountain foothills, and light snow across the lower elevations. For the morning hours, a light freezing drizzle is possible in southeast Montana that could lead to slick roads and sidewalks, and poor visibility.
Highs Thursday will be mainly the 20s and 30s with more clouds than sun. Friday morning will be especially chilly as the sky begins to clear. Lows slip to teens and some single digits across Eastern Montana and Northern Wyoming.
Warming and drying conditions develop for the weekend. Friday is a transition day. With the cold morning, highs will peak in the 30s to low 40s with afternoon sun and clouds.
Saturday and Sunday are on track to reach the seasonal average of near 50.
Thursday… Periods of light snow. Otherwise cloudy with a high near 29. Light northerly wind.
Thursday night… A chance of evening showers or flurries. Dropping to about 17 for the low and becoming mostly cloudy.
Friday… Partly sunny and reaching to around 38 for a high.